Traction-wheel attachment.



0. OLSON. TRAGTION WHEEL ATTAGHMEHT.

APPLICATION nun HAB..12. 1912 1 ,047378 Patented Dec. 17,1912.

2 SEEETS-SHEET 1 Ila-:1.

mu/humus.

' 0. OLSON. TRACTION WHEEL ATTACHMENT.

APPLICATION FILED MAR. 12. 1912.

Patented Dec. 17, 1912.

2 SHEBTSSHEFT 2,

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[will A MW If r at 3 f ncoeqo STATES PA EN onmoE- 1,047,278. ifi i n 'pa a t 1 Patented Dec. 17,1912.

' Application filed March 12,1912. Serial no. case;

To all whom it may concern: arranged between the spokes 5. These'tr'ac-*Be it known that I, Onm OLSON, a 'subtors are employed when runnin oversoft ject of the King. of Norway, residing at ground where the wheels'woul be liable Brager, in the county of Becker and State to slipunlesssome such extra gripping o 5 of Minnesota, have invented certain newmeans were provided, and'as the extra "g'ripand useful Improvements inTraction-.W'heel ping means are requiredonly when running Attachments,of which the following is a over soft ground and wouldf-b'e verydetspecification, reference being had to the ac- 'rimental when runningover hard ground companying drawings. --means are provided forwithdrawing them 5 10 Thls invent on relates to new and useful when notrequired 25 struction and operation.

improvements in traction wheels and more Theinner-ends of'the bars,9 arebifur particularly to the wheels of machines of catedto formspaced-ears'ldbetween which this characteremployed in connection withlinks 11 are pivotally connected, said links agriculturalmachinery; andthe object of being also pivotall mounted between .7 the invention is toprovide means for movspaced ears 12 forms on the outer ends of ing mudbooks out through the rim of the the lugs 13 projecting radially from 1thewheel to engage the ground as the Wheel hub. -j is revolved, and thusincrease the grip Surrounding the hub'upon its inner end when runningover certain kinds of soil. Iis a'. collar let which is provided with anan 75 Another object of the invention-is to pro- -nu1ar groove 15adapted to receive the ring vide a device of this character which will-16, said ring being provided with out-' possess advantages in pointsofefiiciency wardly projecting-studs '17 which 'are ar and durability, beinexpensive of manufacranged at diametrically oppiisite points. j tu e dt. the sometime be simple in con- Pivotally connected to the collar 14arelat 0- erally projecting links 18 which pivotally' With the above andother objects in view, connect the tractor bars 9 with'the link's'll theinvention consists in the novel features and also form the operativeconnections,be-. of construction and the combination and tween said barsand links lland the collartf arran ement of parts hereinafter fully de-In the. resent instance, the inner ends of 85 scribe pointed out in theclaim and shown these lin 18am connected to eyes 19 which in theaccompanying drawings, in which are secured on the outer edgeof'theiollar Figure l isa side elevation, with 'the hub v14. The collar 14is mounted to slide upon. and rim in section, illustrating theconstructhe hub}: and be operated by the yoke 20' tion and operation;Fig. 2 is a transyerse having its ends mounted on the studs 17,:90

sectional-elevation-of a wheel and a' portion and its intermediateportion connected to ,v

i 40 .This improvement ma be attached to any ginental spacing blocks 24are arranged,

of the support with the im rovement ap,- the lever 21, said lever beingpivotally con-- plied. Fig. 3 is a sectionalvview on the line nected tothe ratchet lever 22 by means of 33 of F1 2. Fi- 4 is a perspective viewthe link rod- 23. These levers 21 andz22 are of one of t e mova letractorbars. su ported'in any suitable manner.

form'of wheel to whic such devices are. between the lugs 13' and formedonthe inapplicable; but will generally be applied to nor iace of a disk25 mounted on the hub 4. I the relatively large traction wheels em-Reinforcing blocks 27 arearranged upon ployed upon threshing -machinesand the the inner side of the rim of the wheel-and 45 like. Referrinmore particularly to the are provided with laterally elongated opendrawings 1 indicates the axle, which is in ings adapted to register withthe openings 'the present instance connected by a bracket 7 in the rimof the wheel. The blocksf2l 2 to the side ofthe boiler, (indicated at3). form guides and wear plates for the 'en-- Mounted on the axle is thehub 4' having a larged ends 8 of the tractor bars, the blocks": 60plurality of radial spokes 5 projectingtherethus receiving the strainand preve'ntin a from. Secured to the outer ends of the undue wear-uponthe rim of the whee spokes is the rim 6 which is provided with Theradially disposed side edges of the, segs a lurality of elongatedopenings 7. Movmental spacing blocks 24 and the disk' 25 ably engagingthe openings and adapted for tend to protect the jointed parts frombeing55 projection therethrough are the enlarged struck and injured, while atthe same t me 7 ends 80f the tractor bars 9, said bars being the spacingblocks also serve substinr" edges of adjoining blocks 24 extendingcrating means may 15 varying condltlons and structural changes When myimproved wheel is applied to axles passing entirely through the machine,the operating levers 21 and 22 may be modified to adapt them to thechangeof structure, and it will be understood. that the opbe varied to'any required extent to adapt thedevices to the found in the engines.

' Having thus described the invention what is claimed is I 'Thecombination with a wheel embodying a hub, spokes and a rim, .the rimbeing different makes of traction I formed with openings extendingtherethrongh, of tractor bars movable through said 'openings, linkspivotally connecting the inner ends of the tractor bars to the 'hub, alaterally connected to the tractor bars, whereby to move them inwardlyand outwardly, means for moving said collar, and a disk secured to thehub on the outer side of the 'links and tractor bars, said collar beingformed on its inner face between the links tal spacing blocks,tllQ'SiClQ edges ofwhich extend substantially and tend to guide the sameand protect normal jointed movements thereof.

In testimony whereof I hereunto affix my n ODIN OLSON.

Witnesses W. B. CAKMAN,

J. L. Pnyon.

movable collar operativelyparallel to the links signature in thepresence of two witnesses.

with segmeir them from any strain at right angles to the

